Valve



Dec. 14 1926.

VALVE Filed Juney 12, 1925 Y. Mr:

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STATES bi'llblpl CHARLES NORDSTROI, 0E MLWAUKEE, lSCGI'SIN.

VALVE.

Application filed June 12, 1925. Serial No. 36,566.

My invention relates to a valve more especially intended for 1ase as anair hoist valve; that is to say a three-way valve intaided to beemployed in connection with hoisting` machinery and the like which ispneumati l' f operated and wherein the no valve controls the compressedair supply.

One object of my invention is to provide a construction which is simpleand yet positive in its operations; wherein seating of the controllingmembers or valves will be in the direction of the intlowincg pressure;with the construction so arrangec, however, that an admitting orexhausting condition of the valve may be easily and quickly obtained.

i further object of my invention is to provide a construction which iscomparatively Icheap to manufacture and wherein the various elements areeasily accessible for asseni" bly and replacement when necessary; whileat the same time producing a valve of great durability and which willnot require frequent repair as, however, is the case with valves atpresent in use in connection with hoisting` devices; for which myimproved valve is especially adapted.

The various enumerated objects and ad vantages, as well as otheradvantages inheront in the construction, will allebe more fullycomprehended fromV the following detailed description of theaccompanying drawing, wherein Figure 1 is a sectional elevation of myimproved valve.

Figure 2 is a perspective view of the main or inlet valve.

Figure 2l is a perspective view of the eX- haust valve.

ln the particular enempliiication of the in ventien as disclosed in thedrawing, it com prises a suitable body portion or casingv 15, cored soaste provide the right angular pasthrough the body portion; one side ofthe body portion. beingprovided with the threaded nipple 16 adapted toreceive a suit able anion as at 17, whereby the air inlet line 1S issecured to the valve. The nipple side or end 16 is bored so to provide asuitable shoulder or valve-seat at 19 and thus provide a seat for theinlet valve member 20, the head end whereof is preferably beveled as at`21 to conform with the valve-seat 19 and provide complete closureagainst the inflow of air or other operating medium. The valve 2Ocomprises an elongated shank or spindle 22; the portie-n adjacent to thehead being preferably provided with a number of radially disposed finsor webs 23 arranged in equi-distant spaced relation to contact with thewall of the casing and thereby suitably `guide the valve in itsmovement. The valve 20, intermediate of the head portion and the webs23, .is preferably provided with a slight annular cove 2st whichprovides clearance, when the valve slightly moved ofi its seat, for theingress of air or other operating medium whichpasses from the groove 2li"itermediate of the radial fins or webs 23 and into the main chamber 25of the valve casing.

The elongated spindle 22 is of length sul-licient to extend entirelytransversely of the main chamber 25j with its end preferably slightlyreduced and inserted. into a suitable socket 26 of a` sleeve member 27which is slidably'mounted in the hnbpcrtion 28 of the casing'. rlhe habportion 28 is provided with an openingl in axial alignment with theinlet opening' in the opposite wall of the casing and is provided with asuitable beveled shoulder as at 29 to provide a suitable seat for theenlarged end-or head 3() of the sleeve member 2'?, which is likewisebeveled or tapered adjacent to the head end so as to conform with andprovide a firm seat on the shoulder 29. The soclret or connterbore 26 inthe sleeve 2l" is preferably of length slightly greater' than the extentto which the end of the spindle 22 of inlet valve 2O enters the socketwhen the inlet valve 20 and sleeve 27 -are in normal closed position. lprefer to so construct these elements so that the inlet valve may firmlyseat itself independently of sleeve member 27, and vice versa, when thesleeve has been released by the operating' mechanism. The hnb 28 is alsoshown preferably provided with a small oil-hole at 31 whereby thereciproeating` sleeve 2'? may be kept sutlicient-ly lubricated.

rlhe casing' at right angles to the inlet en-"l or hub 16 is shownprovided with a ta ed opening; to receive a suitable connection wherebythe operating ine-diam or air conveyed to the hoist or other machineryto be operated thereby; that is to sayg opening; constitutes the outletfor the air; and the casing;` at the opposite side, namely in directalignment with outlet 32 is shown provided with an elongated portion orhab 33 which is suitably cored so as to provide the webs Sli and 85whichare apert-nred for the passage of the shank of a release valvelwhich A bored to provide a suitable socket or pocket to receive a coilspring 40, one end whereof rests on the web while the other end engagesa washer ll secured on the spindle or' valve 36 by means or' a suitablepin as at 42; the spring AlO being of su'llicient tension and strengthto normally hold exhaust valve upwardly against its seat; the seatingol" `the valve being also assisted and maintained through the pressureol'l the operating medium or air, so that spring Ll0 need not be ofexcessive strength.

'l`he hub 33 is also shown provided with a pair of upwardly disposedlobes or extensions 43 which are apertured; the lobes being arrangedparallel with each other to receive an operating lever la therebetween;the,

lever being fulcrumed at d5. The lever del 's ot the oset angularformation shown so as to have one portion disposed horizontallyv acrossthe top of release valve 36, while the depending portion extends down toand into alignment with the inlet valve control sleeve member 27; thelever 44 being shown provide-d with suitable contacting or operatingsurfaces, as for example the arcuate surface i6 for the exhaust valve 36and the shoulder pprtion 47 for the inlet valve sleeve member JIU l haveshown. and described what I believe to be the simplest exemplilicationoit my invention, but modilications may be made without, however,departing` from the spirit of my invention.

lVhat l claim is l. A valve comprising a casing having radially disposednipples or extensions, one of the extensions constituting the inlet,while two oi' the extensions at right angles tothe inlet extensionconstitutev outlets, a slidable valve for said inlet provided with aspindle disposed transversely of the casing, a socltetedV memberslidable in the extension diametrically opposite to the inlet andadapted to receive the end oi the inlet valve spindle, said socketedmember extending through t-o the casing exterior and provided with ahead at its inner end to close the opening through the last mentionedextension, an exhaust port in one of said out-let extensions, a springcont-rolled valve slidably mounted in said outlet extension and providedwith a spindle extending to the casing exterior, the inle'I valveholding extension, soclreted member holding extension and said lastmentioned outlet extension all being provided with valve-seats, and anangular lever pivotally mounted intermediate of its ends on said casing,witl one end adapted to actuate said spring controlled outlet valve whenthe lever is moved in one direction` while the other end of the lever isadapted to actuate said socleted member to move the inlet valve oil itsseat when the lever is tilted in the opposite direction.

l valve Comprising a casing having a pair oic intersecting passagesarranged at right angles to each other, the inner walls olf three ofsaid passages being formed to provide valve-seats while the fourth isadapted to receive a discharge pipe, a pair of telescopic valve membersseatable on the diametrically opposite valve-seats for controllinginllow and seatable with the pressure thereof, a valve member seatablewith the outflow pressure on the valve-seat disposed at right angles tothe aries of the telescopic valve members, the stem oli one of the telescopic valve members and the stem of the last mentioned valve memberextending to the casing exterior, and an angular lever pivotally mountedon the casing and provided with actuating surfaces at opposite sides olits mounting adapted to contact with the ends of the two last mentionedmembers.

In a valve oit' the character described, a casing having` 'fouropenings` arranged in diametrically opposite pairs, a slidable inletvalve seatable in the direction orf in'liow. provided with an elongatedstein having radially disposed wings adjacent to the valve-head, theends ol the wings adjacent to the head having a transverse groove toprovide clearance intermediate ol the head and said wings, and aslidably Vmounted aligned soclreted valve member adapted 'to receivethe'stem ol" the lirst mentioned inlet valve and arranged to permitcomplete sealing or' the Ainlet valve before seating oi' the secondmentioned valve, the casing being provided with a lubricating openingcom! mrmicating with the slideway for said soclreted valve member.

CHARLES NORDSTRGM.

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